Question

(a) State one use each of the following non-metals
Hydrogen, Carbon (as Graphite), Nitrogen Sulphur
(b) Name the metal which is used in making thermometers.

Answer 1

Answer:

hydrogen gas is used in petroleum products because it is highly flammable

2. carbon (as graphite)is used for making of pencils like 2b 5b 7b pencils

3.nitrogen is used to make fertilizers, nylon ,acids etc

4.sulphur is used for making gunpowder , acids etc because it reacts fast

ii) mercury is the only metal which is in liquid form and also used in thermometers

Answer 2

Carbon is used for Making Electrodes

Explanation:

• Hydrogen:- for the hydrogenation of vegetable oils hydrogen is used.

* Hydrogenation - The reduction reaction in which Hydrogen is added and Alkene is reduced to Alkane.

• Carbon (as graphite):- for the making of electrodes (Anode & cathode)of the electric cell and dry cell carbon (as graphite) is used.

• Nitrogen:- In the manufacturing of ammonia, nitric acid, and fertilizers nitrogen is used.

• Sulphur:- to prepare sulphuric acid sulphur is used.